Drug Guide
Eptifibatide
Classification
Therapeutic: Antiplatelet agent, Glycoprotein IIb/IIIa inhibitor
Pharmacological: Receptor antagonist
FDA Approved Indications
- Prevention of cardiac ischemic complications in patients with acute coronary syndrome (ACS) undergoing percutaneous coronary intervention (PCI)
Mechanism of Action
Eptifibatide is a cyclic heptapeptide that reversibly inhibits the glycoprotein IIb/IIIa receptor on platelets, preventing fibrinogen binding and platelet aggregation.
Dosage and Administration
Adult: Initial dose of 180 mcg/kg IV bolus, followed by an infusion of 2 mcg/kg/min, continued for up to 18-24 hours or duration of PCI.
Pediatric: Not approved for pediatric use.
Geriatric: Use with caution due to increased bleeding risk; dose adjustment not typically required but monitor closely.
Renal Impairment: Reduce dose or extend dosing intervals; specific adjustments depend on severity.
Hepatic Impairment: No specific recommendations available.
Pharmacokinetics
Absorption: Administered intravenously; no oral absorption.
Distribution: Widely distributed within the vascular compartment.
Metabolism: Metabolized by proteolytic enzymes; not significantly hepatically metabolized.
Excretion: Primarily excreted unchanged in urine.
Half Life: Approximately 2.5 hours.
Contraindications
- Active bleeding
- History of hemorrhagic stroke
- Recent severe trauma or surgery
- Uncontrolled hypertension
Precautions
- Use cautiously in patients with bleeding disorders, severe HTN, or recent major surgery. Monitor closely for bleeding events.
Adverse Reactions - Common
- Bleeding (including minor and major hemorrhage) (Common)
- Back pain, hypotension (Less common)
Adverse Reactions - Serious
- Major bleeding, thrombocytopenia, allergic reactions (Serious but less common)
Drug-Drug Interactions
- Other antithrombotic agents, anticoagulants, NSAIDs, antidepressants
Drug-Food Interactions
N/ADrug-Herb Interactions
N/ANursing Implications
Assessment: Monitor platelet counts, signs of bleeding, blood pressure, and kidney function.
Diagnoses:
- Risk for bleeding
- Impaired tissue perfusion
Implementation: Administer as prescribed, monitor for bleeding, and ensure quick access to interventions if bleeding occurs.
Evaluation: Assess for absence of bleeding complications and therapeutic efficacy.
Patient/Family Teaching
- Report any unusual bleeding or bruising.
- Use caution with activities that may cause injury.
- Inform healthcare providers about all medications taken.
Special Considerations
Black Box Warnings:
- Significant risk of bleeding.
Genetic Factors: None specified.
Lab Test Interference: May interfere with platelet function tests.
Overdose Management
Signs/Symptoms: Excessive bleeding, hypotension, hematoma formation.
Treatment: Discontinue drug, provide supportive care, consider platelet transfusion if bleeding is severe.
Storage and Handling
Storage: Store at room temperature, away from moisture and light.
Stability: Stable until the expiration date on the package.